Vertical-type cooling machine with rectifying device and cooling method

Abstract

The invention discloses a vertical-type cooling machine with a rectifying device. The vertical-type cooling machine comprises the rectifying device, a tower body, an edge air supply device and discharging devices. The tower body comprises a tower top, a tower wall and a tower bottom. The tower top is arranged at the top of the tower wall, and the tower bottom is arranged at the bottom of the towerwall. The rectifying device is arranged above the tower top and further communicates with the inside of the tower body. The edge air supply device is arranged on the lower middle portion of the towerwall. The tower bottom is provided with discharging outlets. The discharging devices are arranged below the corresponding discharging outlets. A hot-blast air outlet is formed in the upper portion ofthe tower top or the tower wall. The vertical-type cooling machine disclosed by the invention has the cooling beneficial effects that the cooling speed of agglomerate is low, ton consumption coolingblast capacity is small, the exhausted air amount is relatively small, the exhausted air temperature is high, the heat efficiency of a boiler is high, the cooled exhausted gas can be fully utilized bythe boiler, and the sensible heat recovery rate of the agglomerate can reach about 7%.

Description

Technical field [0001] The invention relates to a sinter cooler and a sinter cooling method, in particular to a vertical cooler with a rectifying device and a cooling method, and belongs to the field of ironmaking and environmental protection. Background technique [0002] In the modern sintering process, "cooling" is one of the more critical processes. After the sintered ore is roasted by the sintering machine, it has formed a high-temperature finished ore. How can it be protectively cooled without affecting its quality and yield, so that it can be sent to the finished ore bin via a belt conveyor, and at the same time The perfect recovery and utilization of the sensible heat energy it carries has always been a problem that has been continuously researched by industry technicians. [0003] At present, sinter cooling mainly adopts traditional belt coolers or ring coolers based on the principle of high-air fast cooling and one-time loading and unloading cooling. No matter which coo...

AI Technical Summary

Problems solved by technology

No matter which cooling method is used, the cooling machine has problems such as large air leakage rate, high fan power consumption, low sensible heat recovery rate, and low boiler thermal efficiency.

In other words, in the current environment where the market has increasingly stringent requirements for energy saving and green manufacturing in sinter production, the original equipment structure has been difficult to achieve efficient recovery and utilization of sinter sensible heat

At the same time, when the material entering the cooler has particle size segregation in the horizontal direction, the material distributed in the cooler will have uneven particle size distribution in the circumferential direction, which will cause uneven airflow distribution in the cooler, which will eventually affect Cooling uniformity, reducing hot exhaust gas quality

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